X^2+x-20 I need the answer ASAP

Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.

What is the measure of angle x? a.101 b.158 c.44 d.79

Find the vertex for the parabola given by the function ƒ(x) = −3x2 − 6x.